Because connectionless clients share a single connection structure,
their address (ie. the peer address) cannot be associated with a
connection. However, it would be useful to have the peer address
stored as part of the operation structure, so it can be made
available to SLAPI plugins.

Thoughts?

What exactly would you want to do with this information? Since the UDP
transport has no integrity checking of any kind, and only anonymous
requests are supported, I don't see that you can make any meaningful
policy decisions here. The address is logged for informational purposes,
but relying on it for anything else seems like a bad idea.